MF-R020-2

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PTC Resettable Fuses, or ‘fuses with PTC’, are devices designed to protect against over-current conditions in electrical systems and networks. The MF-R020-2 is a PTC resettable fuse, designed specifically for use in a wide range of industrial, medical, automotive, consumer and computer applications. In this article, we will discuss the application fields and working principles of the MF-R020-2.

Application Fields

The MF-R020-2 is designed for a wide range of protection applications, ranging from consumer appliances to automotive electronics. In the consumer space, it is commonly used in communications, entertainment, and other household appliances. Its compact size makes it an ideal choice for devices such as televisions, computers, and other portable consumer electronics, as it can effectively protect these devices from over-current conditions. In the automotive sector, the MF-R020-2 is well-suited for use in the control units, including the alternators, starters, and fuel injection systems, due its high surge current ratings and compact form factor.

The MF-R020-2 is also used widely in Industrial and Medical applications. It provides protection to systems such as industrial robots, medical equipment, industrial control systems, and other complex electronics. Its fast-acting current limiting and overtemperature protection capability ensure safe and reliable operation in harsh electric or environment conditions.

Working Principle

The working principle of the MF-R020-2 is based on the principle of a solid-state, Polymeric Positive Temperature Coefficient (PTC) device. The device utilizes a PTC device in a thermally sensitive circuit, which triggers when an over-current condition is detected. When the current exceeds the preset limit, the PTC device will heat up, causing the circuit to immediately limit the current flowing through it. This allows the device to protect the system from an over-current situation without triggering any other protective devices.

The MF-R020-2 also features a system resettable function, which enables it to quickly reset itself after a protection event. This eliminates the need for manual resetting and helps minimize downtime. Furthermore, the device can be configured with a wide range of current ratings, from 0.1A up to 40A, allowing it to meet the protection needs of a wide variety of applications.

The MF-R020-2 also features over-temperature and overtemperature protection, which can be adjusted to the necessary level. This helps the device safeguard the connected system against extreme heat conditions. Additionally, the device incorporates low power dissipation and high cycling capability, ensuring reliable protection against current surges.

Conclusion

In conclusion, the MF-R020-2 is a reliable PTC resettable fuse that is well-suited for use in a wide variety of applications, ranging from consumer electronics to complex industrial and medical systems. Its fast-acting current limiting and overtemperature protection capability ensure safe and reliable operation in harsh environments. Additionally, its system resettable feature eliminates the need for manual resetting and helps minimize downtime. We hope this article has been informative and helped you better understand the application fields and working principles of the MF-R020-2.

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